12-HSA: The Acid Inside Every Grease Gun on Earth
Pump grease into any bearing anywhere and odds overwhelmingly favour one chemistry inside the cartridge: lithium grease — and lithium grease is, at heart, soap. Specifically, lithium soap of 12 Hydroxy Stearic Acid, the molecule that turned a castor derivative into the global standard of lubrication.
Why this acid, of all acids
Hydrogenate ricinoleic acid and the double bond disappears while the precious 12-position hydroxyl remains — a stearic acid wearing one perfectly placed -OH. That hydroxyl hydrogen-bonds soap fibres into the three-dimensional sponge that holds oil in place: grease that stays in the bearing, resists water, and survives heat. No ordinary stearic acid builds that structure; 12-HSA’s geometry is the product. Beyond grease, the same gelling gift structures cosmetic sticks, oil gels and polymer specialties.
Castor’s crown derivative
India grows the castor; India increasingly exports its most valuable acid. SIPL supplies 12-HSA flakes with acid, hydroxyl and iodine values certified, in 25 kg bags, to grease and specialty makers across Europe, the USA, China and Japan.
The world turns on this thickener — visit the 12 Hydroxy Stearic Acid page and request specifications and pricing today.




